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Patented Sept. 30, 1919.

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W" I l J0 B ml" "mm A 1 llllflm g E I lllll mns' mmmlllllllflr H J1 mum"l m gnoenloz TATES FRANK M. JOSLIN, OF AMSTERDAM, NEW YORK, ASSIGNOR, T0INMAN MANUFACTUR- IN'G COMPANY, INC., OF AMSTERDAM, NEW YORK, ACORPORATION OF NEW YORK.

COLLAPSIBLE CORE FOR PAPER-ROLLS.

Application filed January 26, 1918.

To all whom it may concern:

Be it known that I, FRANK M. JOSLIN, a citizen of the United States, andresiding at Amsterdam, Montgomery county, State of New York, haveinvented certain new and useful Improvements in Collapsible Cores forPaper-Rolls, of which the following is a specification.

This invention relates to collapsible cores for supporting rolls ofpaper or cloth fabric and particularly to cores for paper rolls, whichare generally large and heavy and which must be shipped long distancesfrom the factories to the consumers and back to the factory, when it isdesired to use them more than once.

The object of the invention is to provide such a core which is ofsubstantial construction, enabling it to be used repeatedly and which iscollapsible, thus permitting it to be taken apart when the roll has beenunwound therefrom, and packed for shipment back to the factory in muchless space than it would have otherwise required.

The invention will be fully revealed in the following description takenin connection with the accompanying drawings, in which:

Figure 1 is a side elevation of the collapsible core, portions beingbroken away to dis close the details of construction;

Fig. 2 is a section along the line 2-2 of Fig. 1;

Fig. 3 is a plan view of a portion of a disk and bar illustrating themanner in which they are placed together;

Fig. 1 is a section along the line 1-4 of Fig. 2.

The invention comprises essentially two metal disks preferably ofcast'iron, a plurality of wooden bars adapted to connect said disks, anda plurality of blocks cotiperating with the bars and disks and lockingthem into a rigid structure upon which a strip of fabric may be wound,but which are removable at will, thereby allowing the disks and bars tobe separated and packed for shipment in a reduced space.

More particularly the core comprises two cast iron disks or heads 10each having a series of marginal rectangular openings 11 arranged aroundthe periphery thereof, portions 12 of the disk projecting inwardly ateach opening and constituting shoulders which cooperate with the blockmembers 13 in holding, the ends of the wooden bars 1:4.

Specification of Letters Patent.

Patented Sept. 30, 1919.

Serial No. 213,948.

firmly within the openings 11. The wooden m the'openings 11, the outerends of which are narrowed by the inwardly extending projections orshoulders 12.

WVhen the ends of the bars have thus been inserted within correspondingopenings 11 in the two disks the bevel edged block members 13, which areof substantially the same width as the slots in the ends of the bars,are inserted into these slots between the walls of the openings 1], thusholding the sides of the bars against the sides of openings 11 andthereby preventing radial lTlOVOlllOllt of the bars relatively to thedisks since the shoulders 12 will engage the upper faces of the sideportions of the bar to lock them within the openings. In order toprevent the bars from slipping longitudinally relatively to the diskseach of them is notched on the upper face at 15 as clearly shown in Fig.4, and the shoulders 16 of these notches engaging the opposite ends ofprojections 12 when the bars have been inserted, thus preventing suchlongitudinal movement.

The blocks 13 are inserted radially and are held within the slots byfrictional engagement with the side portions of the bars. and also bythe roll of fabric which is wound upon the core. These blocks 13 may beeasily removed when the fabric has been unwound from the core by forcingthem longitudinally from the ends of the slots, and when they have thusbeen removed the bars may be separated from the disks by pinching theirends together and lifting them from the openings 11 in exactly thereverse mannor of their insertion thereinto, as shown in Fig. 3. Thedisks are provided with squared central openings 17 through which asuitable bar or shaft of a winding machine, printing press, paper boxmaking machine, or other such machine may be passed to support the corewhen the fabric is being wound thereon or removed therefrom.

The disks 10 are flat metallic. members inning lateral flanges toprovide increased bearing areas for the Wooden bars and for the shaftsWhich may pass through the cen tral opening 17. This construction allowsthe disks to be comparatively light in Weight and yet provide suchnecessary bearing surfaces.

From the foregoing description the operation of the invention isapparent. The bars and disks are put together and locked into a rigidstructure at the factory or point at which the strip of fabric is to beWound thereon. The core is then placed upon a Winding machine and theproper length of fabric Wound thereon, after Which it is ready to beshipped. When the material has been unwound from the core at the pointof consumption the blocks are removed from the slots in the ends of thebarsfand the bars removed from the openings in the disks, the core beingin this manner collapsed and the individual bars and disks being packedfor shipment to the factory in a small space in comparison to thatoccupied by the core when. erected.

Besides effecting 'a considerable saving in freight charges by thusreducing the space required for return shipment, the cores, because ofthe iron centers used prevent losses of paper or other fabric Woundthereon, due to the fact that the iron centered cores will runaccurately in an automatic machine, such as :an automatic paper boxmaking machine, Whereas the supporting disks of the usual 'Woodencentered core become bruised and flattened *out in use so that they donot run accurately When placed on such a machine, an'd'a considerableamount of paper on the "outsi'deof the roll will run badly into themachine, thus causing more or less Waste of "stock. 7

Having thus described the invention What is claimed as new and desiredto be claimed by Letters Patent is: V p

1. Acoll apsibl'e core for 'rolls'of fabric including in combination aplurality of disks adapted to be arranged in parallel relation each diskhaving a series of openings therein arranged a circle, a plurality 'ofbars each of which is adapted to pass through corresponding openings ineach disk, and means insertible into each opening through its mouth tohold the bar therein immovable relatively to the disk, said means beingalso removable at Will, whereby the disks and bars may be formed into arigid 'core to support a roll of fabric, or separated for ship 'ment, asdesired.

"2. A collapsible core for rolls 'of fabric, including in combination"tWo disks adapted to be arranged in parallel relation each hava seriesof marginal slots, a plurality of bars each of which is adapted to passthrough corresponding slots in each disk, and means insertible into eachslot through its-mouth to hold the bar therein immovable relatively tothe disk, said means being also removable at Will, Whereby the disks andbars may be formed into a rigid core to support a roll of fabric, orseparated for shipment, as desired.

'3. A collapsible core for rolls of fabric, including in combination aplurality of disks adapted to be arranged in parallel relation each diskhaving 'a series of openings therein arranged in a circle, a pluralityof bars each of Which is adapted to pass through corresponding openingsin each disk, each bar having a slot therein at the point Where itengages a disk, and means insertible into each 'ofssaid slots to holdthe bar immovable relatively to the disk, said means being alsoremovablexat Will whereby the disks and bars may be formed into a rigidcore to support a roll of fabric, or separated for shipment, as desired.

4. A collapsible c'ore for rolls of fabric, including in combination aplurality of disks adapted to be arranged in parallel relation each diskhaving a series of peripheral openings With intur-ned portionsprojecting into said openings, a plurality of bars adapted to passthrough and closely fit corresponding openings in each dish, each barbeing slotted longitudinally so that its relation each disk memberhaving a series of peripheral openings therein, a plurality of barmembers adapted topass through and closely fit corresponding openings ineach disk, and means for locking said bar members Within said openings,said means comprising projections on one of said members adapted toengage the other member and elements insertible Within said openings andremovable at Will, whereby the disks and bars may be formed into a rigidcore s'truc ture to support a roll of fabric or separated for shipment,as desired.

'6. A collapsible core for rolls of fabric, including in combination twodisk members adapted to be arranged in parallel relation each having aseries of radial rectangular marginal openings therein With overhangingprojecting shoulders, a plurality of rectangular bars adapted to passthrough the coi'u'esponding openings of each disk each bar having itsends slotted longitudinally thereof so that the side-portibneinay bepinched together in inserting the same into the openings to clear theprojecting shoulders, and blocks insertible within said slots to holdthe side portions of the bars against 5 the sides of the slots to belocked therein by said shoulders, said blocks being removable at willwhereby the disks and bars may be formed into a rigid core to support aroll of fabric, or separated for shipment, as desired.

In testimony whereof I affix my signature.

FRANK M. JOSLIN.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents, Washington, D. G.

